Errors in logs /autodiscover/autodiscover.xml
I am getting below error multiple times in a day which causes my application monitoring to fail. Any idea what could be cause of this error
5.06.2015 23:49:27.427 *ERROR* [10.87.80.70 [1434430167423] POST /autodiscover/autodiscover.xml HTTP/1.1] org.apache.sling.servlets.post.impl.operations.ModifyOperation Exception during response processing. org.apache.sling.api.resource.PersistenceException: Unable to commit changes to session.
at org.apache.sling.jcr.resource.internal.helper.jcr.JcrResourceProvider.commit(JcrResourceProvider.java:513)
at org.apache.sling.resourceresolver.impl.helper.ResourceResolverContext.commit(ResourceResolverContext.java:148)
